A few weeks ago, Beini from PenBBS told us that both Wing Sungs (WSE and Victo) were developing vacuum-filler pens. The WSE turned out to be the 3013, which has been fairly well received. Bobby has just posted on his Instagram about the Victo Green Stationery version. Right now they're just sending out some beta versions, and I have no idea when they'll be in regular production, but Bobby's AliExpress shop (no affiliation) has about ten of the beta pens at $30 each.
The forum rules appear to indicate that I'm not allowed to link to information, so more information can be found on Bobby's Instagram account, under the user name offices_supplies_pen.
It's a bit rich for me for testing a pen in beta, especially with how much I love my current group of vacuum fillers. But figured others might want to check it out.